FLV Video Unification Techniques

How to Merge/Combine/Join YouTube (FLV) Videos

Richard Bennett

Mar 27, 2024• Proven solutions

YouTube is the most popular video sites in the world. You may have downloaded loads of videos from this website. But how to merge them together so that you can play all YouTube videos as one either on a PC, device, or TV? Here a professional YouTube merger is introduced in part 1 for you to easily complete the job. If you just want to merge the videos that have been already uploaded to YouTube, the YouTube Video Editor can help you with that.

Part 1: How to Merge Downloaded YouTube Videos
Part 2: How to Merge YouTube Videos Online

Part 1: How to Merge Downloaded YouTube Videos

Tool you need: Wondershare Filmora video editor

Wondershare Filmora is an easy-to-use video editing tool. With it, YouTube videos will be automatically merged orderly without interrupts. On top of that, you can add transitions between two YouTube videos to make your videos more harmonious. It also enables you to easily make a picture-in-picture (PIP) video , which is definitely another creative way to merge YouTube videos.

Sounds good? Download it now and use this YouTube merger to merge all your YouTube videos.

Below is the details about how to merge YouTube video in Filmora

vMix 4K - Software based live production. vMix 4K includes everything in vMix HD plus 4K support, PTZ control, External/Fullscreen output, 4 Virtual Outputs, 1 Replay, 4 vMix Call, and 2 Recorders.
This bundle includes Studio 200 for vMix from Virtualsetworks, HTTP Matrix 1.0 automation scheduler, and 4 introductory training videos from the Udemy vMix Basic to Amazing course.

Step 1.Import YouTube files to the program

Download and install Wondershare Filmora. It gives good support to the downloaded YouTube videos (usually in FLV or MP4 format). You can either click “Import” on the primary windows and select YouTube video files from your computer, or simply drag and drop YouTube video files from File Explorer to the User’s Album.

Step 2. Drag and drop YouTube videos to merge

To merge YouTube videos, select multiple YouTube videos in the User’s Album by holding down Ctrl or Shift key, and then drag and drop them to the video track on the Timeline. All YouTube files will join one after another without interrupts and there is none transition by default, but you can add transitions between video clips as you want. This will be introduced in Step 3.

Step 3. Merge YouTube videos with transition

By adding transitions, YouTube videos will flow nicely from one to the next. To do so, switch to Transition tab, and drag the desired transition to the Timeline. Alternatively, right click any transition and choose “Apply to All” and “Random to All” from the popup menu to add transitions between YouTube videos in seconds.

Step 4. Merge multiple YouTube files into one

Make sure you are satisfied with everything. You can click Play button to preview how YouTube videos will be merged. If the result is good, click “Export” button to save the YouTube video as one.

CalendarBudget - Monthly subscription membership to CalendarBudget via web browser or mobile app. Support included.

Therefore, go to the “Format” tab and select one desired format and click Create to start merging YouTube videos. By the way, if you want to play the merged YouTube files on iPod, iPhone, iPad, choose “Device” and select your device from the list. You can also directly upload back to YouTube for sharing or burn to DVD for playing on TV.

Part 2: How to Merge YouTube Videos Online

Tool you need: YouTube Video Editor

YouTube Video Editor is a browser-based video editor released by YouTube itself. It enables users to make minor edits to videos they’ve uploaded onto YouTube, as well as merge several clips together into one. It requires no additional software, or browser plug-ins (besides Adobe’s Flash), which makes it convenient to use. However, it lacks many basic features of modern day consumer video editing software and often crashes while dealing with large video files.